Side bearing



April 3, 1928. 1,664,915 v A. cHRlsTlANsoN ET AL SIDE BEARING Filed.Deo.fo'l. 1926 2 Sheets-Sheet l April 3,l 1928.

A. CHRISTIANSON ET AL SIDE BEARING Filed Dec. 5l. 1926 2 Sheets-Sheet 2Patented Apr. 3, 1928..

tllalllll @ENCE SIDE BEARING.

Application filed. December Qur invention relates to side bearingstructure of the type commonly provided in railway cars between the bodyand truck bolsters, adjacent to the ends thereof.

Our invention has for one of its objects, the provision of an impr-ovedand simplified form of side ybearing structure.

Another object of our invention is to provide a structure, wherein thereis less tendency toward binding of the movable parts against movementthan in some of the devices heretofore employed.

Still another object of our invention is to provide a structure, whereinthe movable parts are accurately guided and maintained in properposition.

One form which our invention may take is shown in the accompanyingdrawing, wherein Figure 1 is a plan view of a side bearing structureembodying our invention; Fig. 2 is a view taken on the line 2-2 of Fig.1; Fig. 3 is a plan view of a blank from which the roller bearing cageof Fig. 1 may be conveniently formed; Fig. 4 is a side elevational viewof the bearing cage of Fig. 1, and Fig. 5 is a. Lrear elevational viewthereof.

While the structure may be employed in various forms of apparatus, wehave, in the present instance, shown it as applied to a body bolster 6of a railway car body (not shown) and a truck bolster 7 which may bemounted on a railway car truck (not shown) in a usual manner. Upper andlower bearingplates 9 and 1() are secured to the bolsters 6 and 7respectively. Bracket members 11 and 12 are also secured to the bolsters6 and 7 and are provided with pivot pins 13 and 1.4, respectively, thatextend through slots in the ends of a lever 15. The slots permit freemovement of the bolsters 6 and 7 relative to one another in horizontaldirections, particularly in cases where there may be a tendency for thedistance between the pins 13 and 14 to vary, either by reason of theswivelling movement of the truck bolster 7 about the center pin of thetruck (not shown) or through relative longitudinal movement as betweenthe bolsters 6 and 7.

An anti-friction roller 16 is supported upon the bearing plate 10, inposition to be engaged by the bearing plate 9 when the bolster 6 movesdown by reason of swayinof movement ef the car body, or the truck 31,1926. Serial No. 158,207.

The edges 20 of the blank are turned downy wardly and inwardly under thelongitudinal edges of the bearing plate 10, and serve as guides forpreventing displacement of the roller 16 with respect to the plate 10.

rfhe forward edge ofthe blank has a tongue-like extension 21 that isbent downwardly, to extend under the lever 15, and has a hole that is invertical alinement with a 'hole inthe lever 15. A link 22 is disposedabove the lever 15 and is connected thereto by a pin 23 which extendsthrough the link 22, the lever 15, and the extension 21. The rear end ofthe link is disposed above a pern forat-ion 24 in the cage 17 and has aportion 25 which extends downwardly therethrough and is upset at itslowerV end. The portion 25 is offset at 26 and is provided with a flangeor rib 27 by means of which it is rigidly secured in the cage. The cage17 thus has, in effect, a double connection with the lever 15-onethrough the tongue 21, and another through the 'link 22-sorthat therewill be a balanced pull exerted upon the pin 23 and the cage17 by thelever 15.

It will be seen that as the bolsters 6 and 7 are moved relatively to oneanother in a horizontally transverse direction, such movement will beimparted to the cage 17 and the roller 16, so that the roller isautomatically and positively moved along the bearing plate 10 intoposition to properly receive impacts from the bearing plate 9. 'lhelever 15 and its points of connection to thepins 13 and 14 are on alineparallel to the aXis of the shaft 18, so that there is little or nobinding resistance to the movement of the lever and the roller. v

The bracket 11 is secured to the bolster 6 at a point between the innerend of the roller 16 and the center ofthe bolster', so there will be asmaller degreeef verti cal movement of said bracket with respectto thebolster 7 than if the bracketwere placed adjacent to the outer or higherend of the bolster 6, for the reason that the b01- ster `6 Will rock,With the car body, in a vertical plane. It will also be seen that theroller 16 isl constantly in engagement with the bottom bearing plate 1()and that the guide flanges 2O of the cage 17 cao-operate with the edgesof this normally stationary plate, so that the `Cage 17 normally has novertical movement relative to its associated plate, as would be the easeif it Were suspended from the plate 9. In the latter instance, lostmot-ion between the oag'e and the plate would be taken up whenever theroller was brought into engagement with the bottom plate.

Ve Claim as our invention 1. The combination with a railvvayear having abody bolster and a truck bolster,

of a bracket extending downwardly from the body bolster, a bracketextending upwardly from the truck bolster, a leverpivot- Y y a pressedmetal `cage orsaid roller, the said cage comprising ears straal; up fromthe body portion of a plate, downturned flanges at the sides of saidplate, and atongue projecting from one end of the plate for attachmentto a` lever or the like.

In testimony whereof We the said ARNOLD CHRrs'rmNsoN and CHRISTIANCHRISTIANSON have hereunto set our hands.

ARNOLD GHRISTIANSON. CHRISTIAN CHRISTIANSON

